FAQ - a frequently asked question about the meter is:

FAQ air-Q pic

Can individual sensors be replaced and supplemented?

Response:

Most sensors are socketed and can be replaced if they are defective or the shelf life has expired. In this case, the air-Q gives a hint in the app or on the device.

The air-Q has one or more free slots for additional sensors (depending on the version). It is conceivable, for example, to add a sensor for ultra-particulate matter or for methane. All additional sensors available so far can be found at https://shop.air-q.com/.

air-Q Air Quality Meter

Monitor air quality, all air components and environmental influences with the air-Q. For your health and performance.